Home / 78,192.24-107,905.68-45,948.60

Finding the Fourth Proportional to 78,192.24, 107,905.68 and 45,948.60

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Solution

The fourth proportional to 78,192.24, 107,905.68 and 45,948.60 is: 63,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,192.24 : 107,905.68 = 45,948.60 : x
  2. Step 2: Convert to fraction form
    78,192.24/107,905.68 = 45,948.60/x
  3. Step 3: Cross multiply
    78,192.24x = 107,905.68 × 45,948.60
  4. Step 4: Simplify right side
    78,192.24x = 4,958,114,928.05
  5. Step 5: Solve for x
    x = 4,958,114,928.05/78,192.24
  6. Step 6: Final answer
    x = 63,409.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.